##// END OF EJS Templates
compression: accept level management for zlib compression...
marmoute -
r42209:aaececb4 default
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@@ -456,6 +456,10 b' class _zlibengine(compressionengine):'
456 return _GzipCompressedStreamReader(fh)
456 return _GzipCompressedStreamReader(fh)
457
457
458 class zlibrevlogcompressor(object):
458 class zlibrevlogcompressor(object):
459
460 def __init__(self, level=None):
461 self._level = level
462
459 def compress(self, data):
463 def compress(self, data):
460 insize = len(data)
464 insize = len(data)
461 # Caller handles empty input case.
465 # Caller handles empty input case.
@@ -465,7 +469,10 b' class _zlibengine(compressionengine):'
465 return None
469 return None
466
470
467 elif insize <= 1000000:
471 elif insize <= 1000000:
472 if self._level is None:
468 compressed = zlib.compress(data)
473 compressed = zlib.compress(data)
474 else:
475 compressed = zlib.compress(data, self._level)
469 if len(compressed) < insize:
476 if len(compressed) < insize:
470 return compressed
477 return compressed
471 return None
478 return None
@@ -474,7 +481,10 b' class _zlibengine(compressionengine):'
474 # memory usage for large inputs. So do streaming compression
481 # memory usage for large inputs. So do streaming compression
475 # on large inputs.
482 # on large inputs.
476 else:
483 else:
484 if self._level is None:
477 z = zlib.compressobj()
485 z = zlib.compressobj()
486 else:
487 z = zlib.compressobj(level=self._level)
478 parts = []
488 parts = []
479 pos = 0
489 pos = 0
480 while pos < insize:
490 while pos < insize:
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